Protective device for the head and chest of a rat

Abstract

The application discloses a protective device for the head and chest of a rat, which comprises a supporting frame, a protection mechanism and a binding assembly. The supporting frame comprises a supporting plate, the front surface of the supporting plate is provided with a plurality of arrayed containing grooves, each containing groove is provided with the protection mechanism, the protection mechanism comprises a head protection arc plate, a chest protection arc plate and a plurality of locking assemblies, the bottom side edge of the head protection arc plate is provided with a first protection flat plate, the bottom side edges of the chest protection arc plate are provided with second protection flat plates, the first protection flat plate and the second protection flat plate are detachably installed on the supporting plate through the locking assemblies, and each containing groove is connected with the binding assembly for binding the limbs of the rat. The protective device is used for installing the head protection arc plate or the chest protection arc plate on the supporting plate through the locking assemblies, protecting the head or the chest of the rat separately, and then using a shock tube to perform independent impact injury tests on the head and the chest of the rat, so that the accuracy of experimental data is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical scientific research experiment equipment, in particular to a protective device for the head and chest of a rat. BACKGROUND

[0002] Modern war is an information-based war dominated by high-explosive weapons, and high-explosive weapons have become the main killing weapons. Blast injury is the most common injury caused by high-explosive weapons. High-explosive weapons can cause a large number of casualties in a short time through the generation of overpressure shock waves, high-speed fragments, and high-temperature heat energy. Compound injuries and multiple injuries are common, the injury is severe, the injury is complex, the progress is fast, and the treatment is difficult, with a very high early mortality rate, which brings great challenges to medical support. It is of great practical significance to strengthen the research on the injury mechanism and treatment strategy of blast shock injury, especially the treatment of head and chest blast shock injury.

[0003] In the current international research on animal models of head blast shock injury, regardless of the type of explosive source used, the protection of the main organs of the torso is not involved, resulting in a whole-body injury model, which makes it difficult to study the injury evolution rule and injury mechanism of head and chest blast shock injury.

[0004] At present, in the experiment of head or chest blast shock injury, the rat is fixed and placed in the pipeline of the shock tube, and the shock wave is emitted by the biological shock tube to perform shock injury test on the rat, so as to obtain the damage of the shock wave to the head or chest of the rat, and then research is carried out according to different damage degrees. However, in the experiment, the head or chest of the rat is not protected, and the whole body is subjected to the impact, resulting in complex shock wave injury on the rat, which cannot be studied alone, making the research data inaccurate and affecting the experimental results. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a protective device for the head and chest of a rat, which solves the problem that the head or chest of the rat is not protected alone in the experimental shock wave, affecting the experimental results.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A protective device for the head and chest of a rat, comprising:

[0008] A support frame, the support frame comprising a support plate and four support legs, the four support legs being fixedly arranged at the four corners of the front surface of the support plate, and the front surface of the support plate being provided with a plurality of arrayed accommodating grooves, each accommodating groove being used for accommodating one rat;

[0009] The protective mechanism is installed in each accommodating groove and used for protecting the head or chest of the rat, and comprises a head protection arc plate, a chest protection arc plate and a plurality of locking assemblies, the bottom side edge of the head protection arc plate is outwardly folded to form a first protection flat plate, the bottom side edges of the chest protection arc plate are outwardly folded to form second protection flat plates, the first protection flat plate is detachably installed on the front face of the support plate through the locking assemblies, and the second protection flat plates are detachably installed on the front face of the support plate through the locking assemblies.

[0010] The binding assembly is connected to each accommodating groove and used for binding the limbs of the rat.

[0011] The protective device for the head and chest of the rat is installed on the support plate through the locking assemblies to separately protect the head or chest of the rat, so that the head and chest of the rat are subjected to independent impact injury tests by using the shock tube, and the accuracy of experimental data is improved.

[0012] Further, two first locking holes are formed in the first protection flat plate, two first through holes corresponding to the first locking holes of the first protection flat plate are arranged on the support plate and close to the head groove, two first locking holes are formed in each of the second protection flat plates, four first through holes corresponding to the first locking holes of the second protection flat plates are arranged on the support plate and close to the chest groove, and the bottom end of the locking assembly passes through the first locking hole and the first through hole to fix the head protection arc plate or the chest protection arc plate on the front face of the support plate.

[0013] Further, the locking assembly comprises a positioning tube, a screw rod and an expansion ring, the positioning tube is arranged in the first locking hole, the inner side surface of the positioning tube is provided with an internal thread, the bottom end of the screw rod is screwed into the positioning tube, the expansion ring is arranged at the bottom end of the screw rod, a plurality of expansion grooves are formed in the circumferential side surface of the expansion ring, an expansion spring is arranged in each expansion groove, one end of the expansion spring is connected to the inner bottom wall of the expansion groove, the other end of the expansion spring is connected with an expansion block, the end of the expansion block away from the expansion spring can slide to the outside of the expansion groove, and the expansion block is slidably connected with the expansion groove.

[0014] Further, the locking assembly further comprises a main pull rope, a top surface of the screw is provided with a through main stretching hole in the axial direction, a bottom end of the main pull rope extends to an inner side of the expansion ring through the main stretching hole and is connected with a plurality of auxiliary pull ropes, an inner bottom wall of each expansion groove is provided with an auxiliary stretching hole, the auxiliary stretching hole is communicated with the inner side of the expansion ring, and the plurality of auxiliary pull ropes are connected to the expansion blocks through the auxiliary stretching holes away from the main pull rope. By pulling the main pull rope outward, the expansion blocks are driven to be completely retracted into the expansion grooves, and the expansion rings are respectively slid into the positioning tubes.

[0015] Further, the binding assembly comprises a binding belt and a binding ring, a position of the accommodation groove for accommodating the four limbs of the rat is set as a limb groove, two ends of the binding belt are respectively connected to two side walls inside the limb groove, the binding ring is elastic, and the binding ring is fixedly arranged on the binding belt. The four limbs of the rat are fixed in the limb groove through the binding belt and the binding ring.

[0016] Further, the binding assembly further comprises a rotating shaft and two torsional springs, the back surface of the support plate and the position close to the limb groove are provided with a receiving groove, the rotating shaft is rotatably arranged in the receiving groove, two side walls inside the receiving groove are provided with rotating grooves, two ends of the rotating shaft are rotatably arranged in the two rotating grooves respectively, the two torsional springs are arranged in the two rotating grooves respectively, one end of the torsional spring is fixedly connected to the inner side wall of the rotating groove, the other end is fixedly connected to the outer side wall of the end portion of the rotating shaft, and one end of the binding belt extends to the receiving groove through the inner side wall of the limb groove and is wound on the rotating shaft. The binding belt is pulled by the rotating shaft and the torsional spring.

[0017] Further, the plurality of accommodation grooves are arranged in a 3*4 array on the front surface of the support plate.

[0018] Further, the protection mechanism further comprises a hook and a connecting elastic rope, the hook is arranged at the position close to the head groove on the front surface of the support plate, one end of the connecting elastic rope is fixed to the hook, and the other end is used for fixing the teeth of the rat.

[0019] The protective device for the head and chest of the rat has the following beneficial effects: the head protection arc plate or the chest protection arc plate is installed on the support plate through the locking assembly, the head or the chest of the rat is protected separately, independent impact damage tests of the head and the chest of the rat are carried out by using a shock tube, the accuracy of experimental data is improved, and the limbs of the rat are bound in the accommodation grooves through the binding assembly, so that the limbs of the rat are prevented from moving randomly during the test. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application, the drawings needed in the specific embodiments will be briefly introduced below. In all the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0021] Figure 1 It is a structural schematic view of the support frame.

[0022] Figure 2 is the front view of the support plate;

[0023] Figure 3 is the structural diagram of the containing groove, the protection mechanism and the binding assembly in the application;

[0024] Figure 4 is Figure 3 is the sectional view of A-A in the figure;

[0025] Figure 5 is Figure 4 is the enlarged view of B in the figure;

[0026] Figure 6 is the top view of the expansion ring;

[0027] Figure 7 is Figure 3 is the enlarged view of C in the figure;

[0028] Figure 8 is the structural diagram of the binding assembly;

[0029] Reference signs:

[0030] 10 - support frame, 11 - support plate, 12 - support leg, 13 - containing groove, 131 - head groove, 132 - chest groove, 133 - limb groove, 14 - hook, 15 - connecting elastic rope, 20 - protection mechanism, 21 - head protection arc plate, 22 - chest protection arc plate, 23 - locking assembly, 231 - positioning tube, 2311 - main stretching hole, 232 - screw rod, 233 - expansion ring, 2321 - expansion groove, 234 - expansion spring, 235 - expansion block, 236 - main pulling rope, 237 - auxiliary pulling rope, 238 - gathering ball, 2381 - gathering hole, 239 - gathering tube, 24 - first protection flat plate, 25 - second protection flat plate, 26 - first locking hole, 27 - first through hole, 30 - binding assembly, 31 - binding belt, 32 - binding ring, 33 - rotating shaft, 34 - torsional spring, 35 - receiving groove, 36 - rotating groove, 40 - wave-transparent hole. DETAILED DESCRIPTION

[0031] The embodiments of the technical solutions of the application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the application, and therefore only serve as examples, and cannot limit the protection scope of the application.

[0032] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, be constructed and operated in a particular manner, and therefore cannot be understood as a limitation of the present application.

[0033] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] Please refer to Figures 1 to 3 The present application provides a protective device for the head and chest of a rat, which comprises a support frame 10, a protection mechanism 20 and a binding assembly 30. The support frame 10 comprises a support plate 11 and four support legs 12. The front surface of the support plate 11 faces the shock tube. The four support legs 12 are fixedly arranged at the four corners of the front surface of the support plate 11, which facilitates the placement of the support plate 11 standing in the shock tube. The front surface of the support plate 11 is provided with a plurality of arrayed accommodating grooves 13. Each accommodating groove 13 is used to accommodate a rat. The position of the head of the rat accommodated in the accommodating groove 13 is provided with a head groove 131 for accommodating the head of the rat. The position of the chest of the rat accommodated in the accommodating groove 13 is provided with a chest groove 132 for accommodating the chest of the rat. The position of the limbs of the rat accommodated in the accommodating groove 13 is provided with a limb groove 133 for accommodating the limbs of the rat. Each accommodating groove 13 is provided with a protection mechanism 20 for protecting the head or chest of the rat. Each accommodating groove 13 is connected with a binding assembly 30 for binding the limbs of the rat. In use, the rat is placed in the accommodating groove 13. The limbs of the rat are bound in the limb groove 133 by the binding assembly 30. The head or chest of the rat is protected by the protection mechanism 20. The impact wave generated by the shock tube only impacts the head or chest of the rat for shock damage test, so as to obtain accurate experimental data.

[0035] The plurality of accommodating grooves 13 are in a 3*4 array form distributed on the front surface of the support plate 11, so that the rats can be subjected to impact injury test in batches, and the same batch of data can be compared. The protection mechanism 20 comprises a hook 14 and a connecting elastic rope 15. The hook 14 is arranged at a position close to the head groove 131 on the front surface of the support plate 11. One end of the connecting elastic rope 15 is fixed to the hook 14, and the other end is used for fixing a tooth of the rat. The connecting elastic rope 15 has elastic performance. The tooth of the rat and the hook 14 are connected through the connecting elastic rope 15, so that the movement of the head of the rat is prevented during the impact injury test of the head of the rat.

[0036] The protection mechanism 20 comprises a head protection arc plate 21, a chest protection arc plate 22 and a plurality of locking assemblies 23. The bottom side of the head protection arc plate 21 is outwardly folded to form a first protection flat plate 24. The bottom sides of the chest protection arc plate 22 are outwardly folded to form second protection flat plates 25. The first protection flat plate 24 is detachably mounted on the front surface of the support plate 11 through the locking assembly 23. The second protection flat plates 25 are detachably mounted on the front surface of the support plate 11 through the locking assembly 23. The head protection arc plate 21 or the chest protection arc plate 22 is mounted on the support plate 11 through the locking assembly 23, so that the head and the chest of the rat are protected, and experimental data of the impact single impact injury of the chest or the head is obtained.

[0037] Please refer to Figure 4 , specifically, two first locking holes 26 are formed in the first protection flat plate 24. Two first through holes 27 corresponding to the first locking holes 26 in the first protection flat plate 24 are arranged on the support plate 11 close to the head groove 131. Two first locking holes 26 are formed in each of the second protection flat plates 25. Four first through holes 27 corresponding to the first locking holes 26 in the second protection flat plates 25 are arranged on the support plate 11 close to the chest groove 132. The bottom end of the locking assembly 23 passes through the first locking hole 26 and the first through hole 27 to fix the head protection arc plate 21 or the chest protection arc plate 22 on the front surface of the support plate 11.

[0038] Please refer to Figure 5 and Figure 6The locking assembly 23 comprises a positioning tube 231, a screw rod 232 and an expansion ring 233. The positioning tube 231 is arranged in the first locking hole 26, and the inner diameter of the positioning tube 231 is the same as the diameter of the first through hole 27. The inner side of the positioning tube 231 is provided with an internal thread. The bottom end of the screw rod 232 is screwed into the positioning tube 231. The expansion ring 233 is arranged at the bottom end of the screw rod 232. The circumferential side of the expansion ring 233 is provided with a plurality of expansion grooves 2321 which are distributed at equal intervals. An expansion spring 234 is arranged in each expansion groove 2321. One end of the expansion spring 234 is connected to the inner bottom wall of the expansion groove 2321, and the other end of the expansion spring 234 is connected with an expansion block 235. The end of the expansion block 235 away from the expansion spring 234 can slide to the outside of the expansion groove 2321. The expansion block 235 is in sliding connection with the expansion groove 2321. When the expansion ring 233 slides through the first through hole 27, the end of the expansion block 235 away from the expansion spring 234 slides out of the expansion groove 2321, so that the top surface of the expansion block 235 abuts against the back surface of the support plate 11 at the position of the first through hole 27. In the initial state, the expansion ring 233 is located in the positioning tube 231, and the expansion spring 234 is in a compressed state. At this time, the expansion block 235 is completely retracted into the expansion groove 2321.

[0039] When it is necessary to install the head protection arc plate 21 or the chest protection arc plate 22 on the support plate 11, the first locking hole 26 is aligned with the first through hole 27, the screw rod 232 is rotated, and the screw rod 232 is moved towards the support plate 11. When the expansion ring 233 moves to the outside of the bottom of the first through hole 27, under the restoring force of the expansion spring 234, the expansion block 235 loses the restriction of the inner side wall of the positioning tube 231, so that the end of the expansion block 235 slides out of the expansion groove 2321. The screw rod 232 is reversely rotated, so that the end of the expansion block 235 slides out and the top surface of the end abuts against the back surface of the support plate 11 at the bottom of the first through hole 27, thereby avoiding the separation of the head protection arc plate 21 or the chest protection arc plate 22 from the support plate 11.

[0040] Preferably, the locking assembly 23 further comprises a main pull rope 236. A through stretching main hole 2311 is formed in the top surface of the screw rod 232 along the axial direction. The bottom end of the main pull rope 236 extends to the inner side of the expansion ring 233 through the stretching main hole 2311 and is connected with a plurality of secondary pull ropes 237. A stretching secondary hole is formed in the inner bottom wall of each expansion groove 2321 and communicates with the inner side of the expansion ring 233. The ends of the secondary pull ropes 237 away from the main pull rope 236 pass through the stretching secondary holes and are connected to the expansion blocks 235.

[0041] When it is needed to retract the expansion ring 233 into the positioning tube 231, the auxiliary pull rope 237 is pulled to move the expansion block 235 into the expansion groove 2321 by pulling the main pull rope 236 outward, so that the expansion block 235 is completely retracted into the expansion groove 2321, at this time the expansion ring 233 is spring compressed, and the screw rod 232 is reversely rotated to drive the expansion ring 233 to move into the positioning tube 231.

[0042] Further, the locking assembly 23 further comprises a gathering ball 238, which is a hollow structure, and is arranged at the inside center of the expansion ring 233, and the center of the gathering ball 238 coincides with the inside center of the expansion ring 233. Each of the stretching auxiliary holes is provided with a gathering tube 239, and the plurality of gathering tubes 239 away from the one end of the stretching auxiliary hole are all directed to the inside center of the expansion ring 233 and extend into the inside of the gathering ball 238. The top of the gathering ball 238 is provided with a gathering hole 2381, and the end of the auxiliary pull rope 237 away from the expansion block 235 passes through the stretching auxiliary hole and extends into the inside of the gathering ball 238 in the gathering tube 239. The bottom of the main pull rope 236 passes through the stretching main hole 2311 and the gathering hole 2381 and extends into the inside of the gathering ball 238 and is connected with the plurality of auxiliary pull ropes 237. The gathering ball 238 and the gathering tube 239 are arranged to guide the auxiliary pull rope 237, so that the auxiliary pull rope 237 pulls the expansion block 235 more labor-saving.

[0043] As shown in Figure 3 , Figure 7 and Figure 8 , in the embodiment, each of the limb grooves 133 is provided with a binding assembly 30 for conveniently binding the four limbs of the rat. The binding assembly 30 comprises a binding belt 31 and a binding ring 32. The position of the rat four limbs accommodated in the accommodating groove 13 is set as the limb groove 133. The two ends of the binding belt 31 are respectively connected to the two side walls inside the limb groove 133. The binding ring 32 has elasticity and is fixedly arranged on the binding belt 31. When the four limbs of the rat are bound, the limbs of the rat are sleeved in the binding ring 32, the binding ring 32 is elastically tightened on the limbs, and then the binding belt 31 is matched, so that the limbs are fixed in the limb groove 133 and the rat is prevented from moving randomly in the test process.

[0044] Preferably, the binding assembly 30 further comprises a rotating shaft 33 and two torsion springs 34, the back of the supporting plate 11 is provided with a receiving groove 35 near the position of the limb groove 133, the rotating shaft 33 is rotatably arranged in the receiving groove 35, both side walls inside the receiving groove 35 are provided with rotating grooves 36, both ends of the rotating shaft 33 are rotatably arranged in the two rotating grooves 36 respectively, and the two torsion springs 34 are arranged in the two rotating grooves 36 respectively, one end of the torsion spring 34 is fixedly connected to the inner side wall of the rotating groove 36, the other end is fixedly connected to the outer side wall of the end of the rotating shaft 33, and one end of the binding belt 31 slides through the inner side wall of the limb groove 133 and extends into the receiving groove 35 and winds around the rotating shaft 33. Wherein, the restoring force of the torsion spring 34 is relatively strong, and the force of the rat limbs cannot easily drive the torsion spring 34 to deform. When the limbs of the rat are bound, the binding belt 31 is wound around the rotating shaft 33, and the length of the binding belt is extended and pulled out respectively, so that the doctor can conveniently bind the binding ring 32 on the limbs, and the operation difficulty caused by insufficient length of the binding belt is avoided.

[0045] As shown in Figure 1 In the embodiment, a plurality of through wave holes 40 are formed in the supporting plate 11, so that the shock wave can pass through the wave holes 40.

[0046] The working principle of the present application is as follows: when in use, the rat is placed on its back in the accommodating groove 13, so that the head and limbs of the rat correspond to the head groove 131 and the limb groove 133 respectively, the binding ring 32 is used to wrap around the limbs of the rat, and the four limbs of the rat are fixed in the four limb grooves 133 respectively; then the head protection arc plate 21 or the chest protection arc plate 22 is installed on the supporting plate 11, the expanding ring 233 is moved to the outside of the bottom of the first through hole 27 by rotating the screw rod 232, the end of the expanding block 235 slides out, and then the top surface of the end of the expanding block 235 abuts against the supporting plate 11; when it is necessary to remove the head protection arc plate 21 or the chest protection arc plate 22, the main pull rope 236 is pulled outward, the auxiliary pull rope 237 pulls the expanding block 235 to retract completely into the expanding groove 2321, and the screw rod 232 is reversely rotated to move the expanding ring 233 to the inside of the positioning tube 231.

[0047] Then, according to the requirements of the test, when it is necessary to perform impact injury on the head of the rat, the chest protection arc plate 22 is fixed on the supporting plate 11 by the locking assembly 23 to protect the chest of the rat and expose the head of the rat; when it is necessary to perform impact injury on the chest of the rat, the head protection arc plate 21 is fixed on the supporting plate 11 by the locking assembly 23 to protect the head of the rat and expose the chest of the rat.

[0048] The protective device for the head and chest of a rat has the head protection arc plate 21 or the chest protection arc plate 22 installed on the support plate 11 through the locking assembly 23, the head or the chest of the rat is protected separately, independent impact injury tests of the head and the chest of the rat are carried out by using a shock tube, and the accuracy of experimental data is improved; and the limbs of the rat are bound in the containing groove 13 through the binding assembly 30, and the limbs of the rat are prevented from moving randomly during the test.

[0049] The embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A protective device for the head and chest of a rat, characterized in that, The utility model relates to a kind of rat restraint device, including: Support frame, the support frame includes support plate, the front of support plate is equipped with multiple array distribution accommodating slot; And Protection mechanism, each accommodating slot is equipped with protection mechanism, protection mechanism includes head protection arc plate, chest protection arc plate and multiple locking components, the bottom side of head protection arc plate is outwardly folded and is formed with first protection flat plate, the bottom two sides of chest protection arc plate are outwardly folded and are formed with second protection flat plate, first protection flat plate and second protection flat plate can be detachably mounted on the front of support plate by locking component;The bottom end of locking component passes through first locking hole and first through-hole and is fixed on the front of support plate with head protection arc plate or chest protection arc plate; The locking component includes positioning tube, screw rod and expansion ring, the inside of positioning tube is provided in first locking hole, the inside of positioning tube is equipped with internal thread, the bottom end of screw rod is screwed into positioning tube, expansion ring is arranged at the bottom end of screw rod, the circumferential side of expansion ring is provided with several equidistant distribution expansion grooves, expansion spring is arranged in each expansion groove, one end of expansion spring is connected to the inner bottom wall of expansion groove, the other end is connected with expansion block, the end of expansion block away from expansion spring can slide to the outside of expansion groove, expansion block is slidably connected with expansion groove, when expansion ring slides through first through-hole, the end of expansion block away from expansion spring slides out of expansion groove, so that the top surface of expansion block is abutted on the back of support plate and located at the position of first through-hole; The locking component further includes main pull rope, the top surface of screw rod is provided with through-penetrating stretching main hole along the axial direction, the bottom end of main pull rope extends to the inside of expansion ring through stretching main hole and is connected with several auxiliary pull ropes, the inner bottom wall of each expansion groove is provided with stretching auxiliary hole, stretching auxiliary hole is communicated with the inside of expansion ring, the end of several auxiliary pull ropes away from main pull rope passes through stretching auxiliary hole and is connected to expansion block.

2. A protective device for the head and chest of a rat according to claim 1, characterized in that: Two through-penetrating first locking holes are provided on the first protection flat plate, the position of support plate close to head slot is provided with two first through-holes corresponding to the first locking hole on the first protection flat plate, two second protection flat plates are provided with two through-penetrating first locking holes, and the position of support plate close to chest slot is provided with four first through-holes corresponding to the first locking hole on the second protection flat plate.

3. A protective device for the head and chest of a rat according to claim 1, characterized in that: It further includes binding component, each accommodating slot is connected with binding component, for binding the limbs of rat;The binding component includes binding belt and binding ring, the position of accommodating slot for containing the limbs of rat is set as limb slot, the two ends of binding belt are connected to the two side walls inside limb slot respectively, the binding ring has elasticity, and the binding ring is fixedly arranged on binding belt.

4. A protective device for the head and chest of a rat according to claim 3, characterized in that: The binding assembly further comprises a rotating shaft and two torsion springs, a receiving groove is formed on the back of the support plate and close to the limb groove, the rotating shaft is rotatably arranged in the receiving groove, both side walls inside the receiving groove are provided with rotating grooves, both ends of the rotating shaft are rotatably arranged in the two rotating grooves respectively, the two torsion springs are arranged in the two rotating grooves respectively, one end of the torsion spring is fixedly connected to the inner side wall of the rotating groove, and the other end is fixedly connected to the outer side wall of the end of the rotating shaft, one end of the binding belt is slidably penetrated through the inner side wall of the limb groove, extends into the receiving groove and is wound on the rotating shaft.

5. A protective device for the head and chest of a rat according to claim 1, characterized in that: The plurality of accommodating grooves are arranged in a 3*4 array on the front surface of the support plate.

6. A protective device for the head and chest of a rat according to claim 1, characterized in that: The protection mechanism further comprises a hook and a connecting elastic rope, the hook is arranged on the front surface of the support plate close to the head groove, one end of the connecting elastic rope is fixed on the hook, and the other end is used for fixing the teeth of the rat.

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